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Finding the Fourth Proportional to 94,138.92, 129,911.04 and 51,696.60

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Solution

The fourth proportional to 94,138.92, 129,911.04 and 51,696.60 is: 71,340.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,138.92 : 129,911.04 = 51,696.60 : x
  2. Step 2: Convert to fraction form
    94,138.92/129,911.04 = 51,696.60/x
  3. Step 3: Cross multiply
    94,138.92x = 129,911.04 × 51,696.60
  4. Step 4: Simplify right side
    94,138.92x = 6,715,959,070.46
  5. Step 5: Solve for x
    x = 6,715,959,070.46/94,138.92
  6. Step 6: Final answer
    x = 71,340.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.